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Distribution Grid Fault Location: An Analysis of Methods for Fault Location in LV and MV Power Distribution Grids
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
2018 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Outages and power interruptions are a common and unenviable part of power distribution system operations. Growing demands on reliability in distribution systems has opened up for new technological solutions for fault location at MV and LV level in distribution systems, previously reserved for transmission systems.

This report compiles and compares available methods for fault location at distribution level and maps the current fault location process at the power distribution company Ellevio, with the aim of reaching a recommendation for a new fault location scheme. The advocated method is an impedance based method motivated by its reliability, applicability and affordability. The performance and implementation procedure is evaluated through a number of case studies where the methods impact on power reliability demonstrated as well as the need for grid analysis before implementation. Fault indicators and fault current, through relay communications, was identified as key factors for a successful implementation of the method.

Place, publisher, year, edition, pages
2018. , p. 70
Series
UPTEC ES, ISSN 1650-8300 ; 18 002
Keywords [en]
Fault Location, Power Grid, Electricity, Cable fault, Power Distribution, Distribution Grid
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:uu:diva-353710OAI: oai:DiVA.org:uu-353710DiVA, id: diva2:1218803
External cooperation
Ellevio AB
Educational program
Master Programme in Energy Systems Engineering
Presentation
2018-03-09, 2002, Ångströmslaboratoriet, Lägerhyddsvägen 2, Uppsala, 13:15 (Swedish)
Supervisors
Examiners
Available from: 2018-06-25 Created: 2018-06-14 Last updated: 2018-06-25Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Output format
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